An elastic support preventing impacting and sliding comprises a base, the upper end of the base is fixedly connected with a supporting frame, the top end of the supporting frame is fixedly connected with a steel plate, the upper end of the steel plate is fixedly connected with a layer of rubber pad, a spring is installed at the lower end of the supporting frame, and the base is H-shaped. The elastic support has the advantages of being capable of preventing impacting and sliding, high in strength, long in service life, easy to carry and suitable for maintenance and test of sleeves and porcelain bushings of various models and sizes. Meanwhile, the elastic support can not be damaged or deform easily.